Jeremy Corbyn now faces pressure from both the left and right wings of his party on Brexit, after a top union official said backing a Tory divorce deal would be “unacceptable class collaboration.”

It comes as the government’s Brexit plan slid further into chaos, with David Davis’ new plan for the Northern Ireland border was branded “fantastical” by critics.

Under the plan, Northern Ireland could be given joint EU and UK status and a "buffer zone" on its border with the Republic.

Lib Dem Brexit spokesman Tom Brake dismissed the plan as being "like something out of Alice in Wonderland”.

Labour MP Chris Leslie, a supporter of the Open Britain campaign against a hard Brexit, said: "If there was an award for coming up with unnecessarily complicated and convoluted solutions to self-inflicted problems, David Davis would win it every year.”

Jeremy Corbyn already faces firm opposition from the centre-right of his party over Brexit, with a string of moderate MPs backing a second referendum on the terms of the Brexit deal.

(Image: AFP)

Read More

Last night, a cross-party group of MPs, including Labour members from across the party spectrum, signed a joint letter calling for an option to remain in the EU to be included in parliament’s meaningful vote on the terms of Theresa May’s divorce deal.

The letter, organised by campaign group Best for Britain, was signed by a string of prominent Labour MPs including David Lammy, Tulip Siddiq, Wes Streeting, Mike Games and Neil Coyle.

And the Labour leader (FRI) faces fresh pressure from the party’s left wing, as a prominent union leader urged him to “come clean with the electorate [and] say the Brexit squeeze ain’t worth the juice.”